To express the given rate in cubic meters per year, we have to consider the following equivalences.
• 1 cubic meter equals 1000 liters.
,
• 1 liter equals 1000 milliliters.
,
• 1 fluid ounce equals 29.574 millilters.
,
• 1 year equals 365 days.
To transform, we have to express each equivalence as a ratio, as follow
Observe that we have 1 ratio or fraction for each equivalent between units. Now, we solve the products.
Therefore, 6 fluid ounces per day is equivalent to 0.06 cubic meters per year.